Oxytocin vs IGF-1 LR3
Head-to-head comparison of Oxytocin (Neurohypophysial Hormone Peptide) and IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) — benefits, dosing, side effects, research data, and where to buy.
| Property | Oxytocin | IGF-1 LR3 |
|---|---|---|
| Category | Performance | Performance |
| Full Name | Neurohypophysial Hormone Peptide | Insulin-like Growth Factor-1 Long R3 |
| Molecular Weight | 1,007.19 Da | 9,117 Da |
| Half-Life | ~3-5 minutes (plasma) | ~20-30 hours |
| Amino Acids | 9 | 83 |
| Typical Dose | 20-40 IU intranasal | 20-100 mcg |
| Route | Intranasal / IV / IM | IM / SC |
| Purity | — | — |
| Studies Count | 1850 | 298 |
| Research Status | FDA Approved (Pitocin) | Pre-clinical |
Oxytocin Benefits
- ✓Enhances social bonding and trust
- ✓Reduces social anxiety
- ✓Emotional regulation
- ✓Potential autism spectrum benefits
- ✓Stress and anxiety reduction
IGF-1 LR3 Benefits
- ✓Promotes muscle hyperplasia (new muscle cells)
- ✓Extended half-life vs native IGF-1
- ✓Enhanced protein synthesis
- ✓Improved nutrient partitioning
- ✓Anti-catabolic effects
Oxytocin Dosing
Intranasal: 20-40 IU per dose, 1-2 times daily|Social Anxiety: 24 IU intranasal 45 min before social situations|Research: 8-40 IU per administration|Clinical: Per physician protocol
IGF-1 LR3 Dosing
Standard: 20-50 mcg IM post-workout|Advanced: 50-100 mcg IM or SC daily|Cycle: 4-6 weeks on, 4 weeks off
Oxytocin Side Effects
- ⚠Common (Intranasal): Nasal irritation, headache, drowsiness
- ⚠Moderate: Uterine contractions (caution in pregnancy)
- ⚠Rare: Water retention at high doses
- ⚠Contraindications: Pregnancy (non-medical), cardiovascular disease
IGF-1 LR3 Side Effects
- ⚠Common: Hypoglycemia (dose-dependent), joint pain, water retention
- ⚠Moderate: Gut growth concern (high doses), acromegaly-like symptoms
- ⚠Serious: Theoretical cancer risk (prolonged high-dose use)
Research Overview
Oxytocin
Oxytocin has extensive research and is one of the most studied hormonal peptides. FDA-approved for obstetric use. Intranasal formulations being studied for autism spectrum disorder, social anxiety, PTSD, and depression. Complex dose-response relationships being elucidated.
IGF-1 LR3
IGF-1 LR3 has extensive in vitro and animal data. Its role in muscle hyperplasia is well-documented. The extended half-life modification provides practical advantages over native IGF-1.
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